An event-history formula for competing risks of the form Hist(time,status)~sex+age where status defines competing events and right censored data. The code for right censored can be controlled with argument cens.code, see man page the function Hist.

A data.frame in which the variables of formula are defined.

If TRUE perform cross-validation to optimize the parameter stepno. This calls the function cv.CoxBoost whose arguments are prefix controlled, that is cv.K=7 sets the argument K of cv.CoxBoost to 7. If FALSE use stepno.

The cause of interest in competing risk models.

See CoxBoost.

Arguments passed to either CoxBoost via CoxBoost.arg or to cv.CoxBoost via cv.CoxBoost.arg.